diff options
| author | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-17 22:33:34 -0700 |
|---|---|---|
| committer | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-17 22:33:34 -0700 |
| commit | 5110c4743751145c4ae1934cd1d83bc6c55bb43f (patch) | |
| tree | b141608096b73163182764c25b895d3df4b2c182 /core/src/fpdfdoc/doc_annot.cpp | |
| parent | 76b563d2feed92ed328afb1f15e3466a9536b11b (diff) | |
| download | pdfium-5110c4743751145c4ae1934cd1d83bc6c55bb43f.tar.xz | |
Initial commit.
Diffstat (limited to 'core/src/fpdfdoc/doc_annot.cpp')
| -rw-r--r-- | core/src/fpdfdoc/doc_annot.cpp | 519 |
1 files changed, 519 insertions, 0 deletions
diff --git a/core/src/fpdfdoc/doc_annot.cpp b/core/src/fpdfdoc/doc_annot.cpp new file mode 100644 index 0000000000..da30485073 --- /dev/null +++ b/core/src/fpdfdoc/doc_annot.cpp @@ -0,0 +1,519 @@ +// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "../../include/fpdfdoc/fpdf_doc.h"
+#include "../../include/fpdfapi/fpdf_pageobj.h"
+CPDF_AnnotList::CPDF_AnnotList(CPDF_Page* pPage)
+{
+ ASSERT(pPage != NULL);
+ m_pPageDict = pPage->m_pFormDict;
+ if (m_pPageDict == NULL) {
+ return;
+ }
+ m_pDocument = pPage->m_pDocument;
+ CPDF_Array* pAnnots = m_pPageDict->GetArray("Annots");
+ if (pAnnots == NULL) {
+ return;
+ }
+ CPDF_Dictionary* pRoot = m_pDocument->GetRoot();
+ CPDF_Dictionary* pAcroForm = pRoot->GetDict("AcroForm");
+ FX_BOOL bRegenerateAP = pAcroForm && pAcroForm->GetBoolean("NeedAppearances");
+ for (FX_DWORD i = 0; i < pAnnots->GetCount(); i ++) {
+ CPDF_Dictionary* pDict = (CPDF_Dictionary*)pAnnots->GetElementValue(i);
+ if (pDict == NULL || pDict->GetType() != PDFOBJ_DICTIONARY) {
+ continue;
+ }
+ FX_DWORD dwObjNum = pDict->GetObjNum();
+ if (dwObjNum == 0) {
+ dwObjNum = m_pDocument->AddIndirectObject(pDict);
+ CPDF_Reference* pAction = CPDF_Reference::Create(m_pDocument, dwObjNum);
+ if (pAction == NULL) {
+ break;
+ }
+ pAnnots->InsertAt(i, pAction);
+ pAnnots->RemoveAt(i + 1);
+ pDict = pAnnots->GetDict(i);
+ }
+ CPDF_Annot* pAnnot = FX_NEW CPDF_Annot(pDict);
+ if (pAnnot == NULL) {
+ break;
+ }
+ pAnnot->m_pList = this;
+ m_AnnotList.Add(pAnnot);
+ if (bRegenerateAP && pDict->GetConstString(FX_BSTRC("Subtype")) == FX_BSTRC("Widget"))
+ if (CPDF_InterForm::UpdatingAPEnabled()) {
+ FPDF_GenerateAP(m_pDocument, pDict);
+ }
+ }
+}
+CPDF_AnnotList::~CPDF_AnnotList()
+{
+ int i = 0;
+ for (i = 0; i < m_AnnotList.GetSize(); i ++) {
+ delete (CPDF_Annot*)m_AnnotList[i];
+ }
+ for (i = 0; i < m_Borders.GetSize(); ++i) {
+ delete (CPDF_PageObjects*)m_Borders[i];
+ }
+}
+void CPDF_AnnotList::DisplayPass(const CPDF_Page* pPage, CFX_RenderDevice* pDevice,
+ CPDF_RenderContext* pContext, FX_BOOL bPrinting, CFX_AffineMatrix* pMatrix,
+ FX_BOOL bWidgetPass, CPDF_RenderOptions* pOptions, FX_RECT* clip_rect)
+{
+ for (int i = 0; i < m_AnnotList.GetSize(); i ++) {
+ CPDF_Annot* pAnnot = (CPDF_Annot*)m_AnnotList[i];
+ FX_BOOL bWidget = pAnnot->GetSubType() == "Widget";
+ if ((bWidgetPass && !bWidget) || (!bWidgetPass && bWidget)) {
+ continue;
+ }
+ FX_DWORD annot_flags = pAnnot->GetFlags();
+ if (annot_flags & ANNOTFLAG_HIDDEN) {
+ continue;
+ }
+ if (bPrinting && (annot_flags & ANNOTFLAG_PRINT) == 0) {
+ continue;
+ }
+ if (!bPrinting && (annot_flags & ANNOTFLAG_NOVIEW)) {
+ continue;
+ }
+ if (pOptions != NULL) {
+ IPDF_OCContext* pOCContext = pOptions->m_pOCContext;
+ CPDF_Dictionary* pAnnotDict = pAnnot->m_pAnnotDict;
+ if (pOCContext != NULL && pAnnotDict != NULL &&
+ !pOCContext->CheckOCGVisible(pAnnotDict->GetDict(FX_BSTRC("OC")))) {
+ continue;
+ }
+ }
+ CPDF_Rect annot_rect_f;
+ pAnnot->GetRect(annot_rect_f);
+ CFX_Matrix matrix;
+ matrix = *pMatrix;
+ if (clip_rect) {
+ annot_rect_f.Transform(&matrix);
+ FX_RECT annot_rect = annot_rect_f.GetOutterRect();
+ annot_rect.Intersect(*clip_rect);
+ if (annot_rect.IsEmpty()) {
+ continue;
+ }
+ }
+ if (pContext) {
+ pAnnot->DrawInContext(pPage, pContext, &matrix, CPDF_Annot::Normal);
+ } else if (!pAnnot->DrawAppearance(pPage, pDevice, &matrix, CPDF_Annot::Normal, pOptions)) {
+ pAnnot->DrawBorder(pDevice, &matrix, pOptions);
+ }
+ }
+}
+void CPDF_AnnotList::DisplayAnnots(const CPDF_Page* pPage, CFX_RenderDevice* pDevice,
+ CFX_AffineMatrix* pUser2Device,
+ FX_BOOL bShowWidget, CPDF_RenderOptions* pOptions)
+{
+ FX_RECT clip_rect;
+ if (pDevice) {
+ clip_rect = pDevice->GetClipBox();
+ }
+ FX_BOOL bPrinting = pDevice->GetDeviceClass() == FXDC_PRINTER || (pOptions && (pOptions->m_Flags & RENDER_PRINTPREVIEW));
+ DisplayAnnots(pPage, pDevice, NULL, bPrinting, pUser2Device, bShowWidget ? 3 : 1, pOptions, &clip_rect);
+}
+void CPDF_AnnotList::DisplayAnnots(const CPDF_Page* pPage, CFX_RenderDevice* pDevice, CPDF_RenderContext* pContext,
+ FX_BOOL bPrinting, CFX_AffineMatrix* pUser2Device, FX_DWORD dwAnnotFlags,
+ CPDF_RenderOptions* pOptions, FX_RECT* pClipRect)
+{
+ if (dwAnnotFlags & 0x01) {
+ DisplayPass(pPage, pDevice, pContext, bPrinting, pUser2Device, FALSE, pOptions, pClipRect);
+ }
+ if (dwAnnotFlags & 0x02) {
+ DisplayPass(pPage, pDevice, pContext, bPrinting, pUser2Device, TRUE, pOptions, pClipRect);
+ }
+}
+int CPDF_AnnotList::GetIndex(CPDF_Annot* pAnnot)
+{
+ for (int i = 0; i < m_AnnotList.GetSize(); i ++)
+ if (m_AnnotList[i] == (FX_LPVOID)pAnnot) {
+ return i;
+ }
+ return -1;
+}
+CPDF_Annot::CPDF_Annot(CPDF_Dictionary* pDict)
+{
+ m_pList = NULL;
+ m_pAnnotDict = pDict;
+}
+CPDF_Annot::~CPDF_Annot()
+{
+ ClearCachedAP();
+}
+CPDF_Reference* CPDF_Annot::NewAnnotRef()
+{
+ if (m_pAnnotDict->GetObjNum() == 0) {
+ m_pList->m_pDocument->AddIndirectObject(m_pAnnotDict);
+ }
+ return CPDF_Reference::Create(m_pList->m_pDocument, m_pAnnotDict->GetObjNum());
+}
+void CPDF_Annot::ClearCachedAP()
+{
+ FX_POSITION pos = m_APMap.GetStartPosition();
+ while (pos) {
+ void* pForm;
+ void* pObjects;
+ m_APMap.GetNextAssoc(pos, pForm, pObjects);
+ delete (CPDF_PageObjects*)pObjects;
+ }
+ m_APMap.RemoveAll();
+}
+CFX_ByteString CPDF_Annot::GetSubType() const
+{
+ return m_pAnnotDict->GetConstString(FX_BSTRC("Subtype"));
+}
+void CPDF_Annot::GetRect(CPDF_Rect& rect) const
+{
+ if (m_pAnnotDict == NULL) {
+ return;
+ }
+ rect = m_pAnnotDict->GetRect("Rect");
+ rect.Normalize();
+}
+CPDF_Stream* FPDFDOC_GetAnnotAP(CPDF_Dictionary* pAnnotDict, CPDF_Annot::AppearanceMode mode)
+{
+ CPDF_Dictionary* pAP = pAnnotDict->GetDict("AP");
+ if (pAP == NULL) {
+ return NULL;
+ }
+ const FX_CHAR* ap_entry = "N";
+ if (mode == CPDF_Annot::Down) {
+ ap_entry = "D";
+ } else if (mode == CPDF_Annot::Rollover) {
+ ap_entry = "R";
+ }
+ if (!pAP->KeyExist(ap_entry)) {
+ ap_entry = "N";
+ }
+ CPDF_Object* psub = pAP->GetElementValue(ap_entry);
+ if (psub == NULL) {
+ return NULL;
+ }
+ CPDF_Stream* pStream = NULL;
+ if (psub->GetType() == PDFOBJ_STREAM) {
+ pStream = (CPDF_Stream*)psub;
+ } else if (psub->GetType() == PDFOBJ_DICTIONARY) {
+ CFX_ByteString as = pAnnotDict->GetString("AS");
+ if (as.IsEmpty()) {
+ CFX_ByteString value = pAnnotDict->GetString(FX_BSTRC("V"));
+ if (value.IsEmpty()) {
+ value = pAnnotDict->GetDict(FX_BSTRC("Parent"))->GetString(FX_BSTRC("V"));
+ }
+ if (value.IsEmpty() || !((CPDF_Dictionary*)psub)->KeyExist(value)) {
+ as = FX_BSTRC("Off");
+ } else {
+ as = value;
+ }
+ }
+ pStream = ((CPDF_Dictionary*)psub)->GetStream(as);
+ }
+ return pStream;
+}
+CPDF_Form* CPDF_Annot::GetAPForm(const CPDF_Page* pPage, AppearanceMode mode)
+{
+ CPDF_Stream* pStream = FPDFDOC_GetAnnotAP(m_pAnnotDict, mode);
+ if (pStream == NULL) {
+ return NULL;
+ }
+ CPDF_Form* pForm;
+ if (m_APMap.Lookup(pStream, (void*&)pForm)) {
+ return pForm;
+ }
+ pForm = FX_NEW CPDF_Form(m_pList->m_pDocument, pPage->m_pResources, pStream);
+ if (pForm == NULL) {
+ return NULL;
+ }
+ pForm->ParseContent(NULL, NULL, NULL, NULL);
+ m_APMap.SetAt(pStream, pForm);
+ return pForm;
+}
+static CPDF_Form* FPDFDOC_Annot_GetMatrix(const CPDF_Page* pPage, CPDF_Annot* pAnnot, CPDF_Annot::AppearanceMode mode, const CFX_AffineMatrix* pUser2Device, CFX_Matrix &matrix)
+{
+ CPDF_Form* pForm = pAnnot->GetAPForm(pPage, mode);
+ if (!pForm) {
+ return NULL;
+ }
+ CFX_FloatRect form_bbox = pForm->m_pFormDict->GetRect(FX_BSTRC("BBox"));
+ CFX_Matrix form_matrix = pForm->m_pFormDict->GetMatrix(FX_BSTRC("Matrix"));
+ form_matrix.TransformRect(form_bbox);
+ CPDF_Rect arect;
+ pAnnot->GetRect(arect);
+ matrix.MatchRect(arect, form_bbox);
+ matrix.Concat(*pUser2Device);
+ return pForm;
+}
+FX_BOOL CPDF_Annot::DrawAppearance(const CPDF_Page* pPage, CFX_RenderDevice* pDevice, const CFX_AffineMatrix* pUser2Device,
+ AppearanceMode mode, const CPDF_RenderOptions* pOptions)
+{
+ CFX_Matrix matrix;
+ CPDF_Form* pForm = FPDFDOC_Annot_GetMatrix(pPage, this, mode, pUser2Device, matrix);
+ if (!pForm) {
+ return FALSE;
+ }
+ CPDF_RenderContext context;
+ context.Create((CPDF_Page*)pPage);
+ context.DrawObjectList(pDevice, pForm, &matrix, pOptions);
+ return TRUE;
+}
+FX_BOOL CPDF_Annot::DrawInContext(const CPDF_Page* pPage, const CPDF_RenderContext* pContext, const CFX_AffineMatrix* pUser2Device, AppearanceMode mode)
+{
+ CFX_Matrix matrix;
+ CPDF_Form* pForm = FPDFDOC_Annot_GetMatrix(pPage, this, mode, pUser2Device, matrix);
+ if (!pForm) {
+ return FALSE;
+ }
+ ((CPDF_RenderContext*)pContext)->AppendObjectList(pForm, &matrix);
+ return TRUE;
+}
+CPDF_PageObject* CPDF_Annot::GetBorder(FX_BOOL bPrint, const CPDF_RenderOptions* pOptions)
+{
+ if (GetSubType() == "Popup") {
+ return NULL;
+ }
+ FX_DWORD annot_flags = GetFlags();
+ if (annot_flags & ANNOTFLAG_HIDDEN) {
+ return NULL;
+ }
+ FX_BOOL bPrinting = bPrint || (pOptions && (pOptions->m_Flags & RENDER_PRINTPREVIEW));
+ if (bPrinting && (annot_flags & ANNOTFLAG_PRINT) == 0) {
+ return NULL;
+ }
+ if (!bPrinting && (annot_flags & ANNOTFLAG_NOVIEW)) {
+ return NULL;
+ }
+ CPDF_Dictionary* pBS = m_pAnnotDict->GetDict("BS");
+ char style_char;
+ FX_FLOAT width;
+ CPDF_Array* pDashArray = NULL;
+ if (pBS == NULL) {
+ CPDF_Array* pBorderArray = m_pAnnotDict->GetArray("Border");
+ style_char = 'S';
+ if (pBorderArray) {
+ width = pBorderArray->GetNumber(2);
+ if (pBorderArray->GetCount() == 4) {
+ pDashArray = pBorderArray->GetArray(3);
+ if (pDashArray == NULL) {
+ return NULL;
+ }
+ style_char = 'D';
+ }
+ } else {
+ width = 1;
+ }
+ } else {
+ CFX_ByteString style = pBS->GetString("S");
+ pDashArray = pBS->GetArray("D");
+ style_char = style[1];
+ width = pBS->GetNumber("W");
+ }
+ if (width <= 0) {
+ return NULL;
+ }
+ CPDF_Array* pColor = m_pAnnotDict->GetArray("C");
+ FX_DWORD argb = 0xff000000;
+ if (pColor != NULL) {
+ int R = (FX_INT32)(pColor->GetNumber(0) * 255);
+ int G = (FX_INT32)(pColor->GetNumber(1) * 255);
+ int B = (FX_INT32)(pColor->GetNumber(2) * 255);
+ argb = ArgbEncode(0xff, R, G, B);
+ }
+ CPDF_PathObject *pPathObject = FX_NEW CPDF_PathObject();
+ if (!pPathObject) {
+ return NULL;
+ }
+ CPDF_GraphStateData *pGraphState = pPathObject->m_GraphState.GetModify();
+ if (!pGraphState) {
+ pPathObject->Release();
+ return NULL;
+ }
+ pGraphState->m_LineWidth = width;
+ CPDF_ColorStateData *pColorData = pPathObject->m_ColorState.GetModify();
+ if (!pColorData) {
+ pPathObject->Release();
+ return NULL;
+ }
+ pColorData->m_StrokeRGB = argb;
+ pPathObject->m_bStroke = TRUE;
+ pPathObject->m_FillType = 0;
+ if (style_char == 'D') {
+ if (pDashArray) {
+ FX_DWORD dash_count = pDashArray->GetCount();
+ if (dash_count % 2) {
+ dash_count ++;
+ }
+ pGraphState->m_DashArray = FX_Alloc(FX_FLOAT, dash_count);
+ if (pGraphState->m_DashArray == NULL) {
+ pPathObject->Release();
+ return NULL;
+ }
+ pGraphState->m_DashCount = dash_count;
+ FX_DWORD i;
+ for (i = 0; i < pDashArray->GetCount(); i ++) {
+ pGraphState->m_DashArray[i] = pDashArray->GetNumber(i);
+ }
+ if (i < dash_count) {
+ pGraphState->m_DashArray[i] = pGraphState->m_DashArray[i - 1];
+ }
+ } else {
+ pGraphState->m_DashArray = FX_Alloc(FX_FLOAT, 2);
+ if (pGraphState->m_DashArray == NULL) {
+ pPathObject->Release();
+ return NULL;
+ }
+ pGraphState->m_DashCount = 2;
+ pGraphState->m_DashArray[0] = pGraphState->m_DashArray[1] = 3 * 1.0f;
+ }
+ }
+ CFX_FloatRect rect;
+ GetRect(rect);
+ width /= 2;
+ CPDF_PathData *pPathData = pPathObject->m_Path.GetModify();
+ if (pPathData) {
+ pPathData->AppendRect(rect.left + width, rect.bottom + width, rect.right - width, rect.top - width);
+ }
+ pPathObject->CalcBoundingBox();
+ return pPathObject;
+}
+void CPDF_Annot::DrawBorder(CFX_RenderDevice* pDevice, const CFX_AffineMatrix* pUser2Device, const CPDF_RenderOptions* pOptions)
+{
+ if (GetSubType() == "Popup") {
+ return;
+ }
+ FX_DWORD annot_flags = GetFlags();
+ if (annot_flags & ANNOTFLAG_HIDDEN) {
+ return;
+ }
+ FX_BOOL bPrinting = pDevice->GetDeviceClass() == FXDC_PRINTER || (pOptions && (pOptions->m_Flags & RENDER_PRINTPREVIEW));
+ if (bPrinting && (annot_flags & ANNOTFLAG_PRINT) == 0) {
+ return;
+ }
+ if (!bPrinting && (annot_flags & ANNOTFLAG_NOVIEW)) {
+ return;
+ }
+ CPDF_Dictionary* pBS = m_pAnnotDict->GetDict("BS");
+ char style_char;
+ FX_FLOAT width;
+ CPDF_Array* pDashArray = NULL;
+ if (pBS == NULL) {
+ CPDF_Array* pBorderArray = m_pAnnotDict->GetArray("Border");
+ style_char = 'S';
+ if (pBorderArray) {
+ width = pBorderArray->GetNumber(2);
+ if (pBorderArray->GetCount() == 4) {
+ pDashArray = pBorderArray->GetArray(3);
+ if (pDashArray == NULL) {
+ return;
+ }
+ int nLen = pDashArray->GetCount();
+ int i = 0;
+ for (; i < nLen; ++i) {
+ CPDF_Object*pObj = pDashArray->GetElementValue(i);
+ if (pObj && pObj->GetInteger()) {
+ break;
+ }
+ }
+ if (i == nLen) {
+ return;
+ }
+ style_char = 'D';
+ }
+ } else {
+ width = 1;
+ }
+ } else {
+ CFX_ByteString style = pBS->GetString("S");
+ pDashArray = pBS->GetArray("D");
+ style_char = style[1];
+ width = pBS->GetNumber("W");
+ }
+ if (width <= 0) {
+ return;
+ }
+ CPDF_Array* pColor = m_pAnnotDict->GetArray("C");
+ FX_DWORD argb = 0xff000000;
+ if (pColor != NULL) {
+ int R = (FX_INT32)(pColor->GetNumber(0) * 255);
+ int G = (FX_INT32)(pColor->GetNumber(1) * 255);
+ int B = (FX_INT32)(pColor->GetNumber(2) * 255);
+ argb = ArgbEncode(0xff, R, G, B);
+ }
+ CPDF_GraphStateData graph_state;
+ graph_state.m_LineWidth = width;
+ if (style_char == 'D') {
+ if (pDashArray) {
+ FX_DWORD dash_count = pDashArray->GetCount();
+ if (dash_count % 2) {
+ dash_count ++;
+ }
+ graph_state.m_DashArray = FX_Alloc(FX_FLOAT, dash_count);
+ if (graph_state.m_DashArray == NULL) {
+ return ;
+ }
+ graph_state.m_DashCount = dash_count;
+ FX_DWORD i;
+ for (i = 0; i < pDashArray->GetCount(); i ++) {
+ graph_state.m_DashArray[i] = pDashArray->GetNumber(i);
+ }
+ if (i < dash_count) {
+ graph_state.m_DashArray[i] = graph_state.m_DashArray[i - 1];
+ }
+ } else {
+ graph_state.m_DashArray = FX_Alloc(FX_FLOAT, 2);
+ if (graph_state.m_DashArray == NULL) {
+ return ;
+ }
+ graph_state.m_DashCount = 2;
+ graph_state.m_DashArray[0] = graph_state.m_DashArray[1] = 3 * 1.0f;
+ }
+ }
+ CFX_FloatRect rect;
+ GetRect(rect);
+ CPDF_PathData path;
+ width /= 2;
+ path.AppendRect(rect.left + width, rect.bottom + width, rect.right - width, rect.top - width);
+ int fill_type = 0;
+ if (pOptions && (pOptions->m_Flags & RENDER_NOPATHSMOOTH)) {
+ fill_type |= FXFILL_NOPATHSMOOTH;
+ }
+ pDevice->DrawPath(&path, pUser2Device, &graph_state, argb, argb, fill_type);
+}
+int CPDF_Annot::CountIRTNotes()
+{
+ int count = 0;
+ for (int i = 0; i < m_pList->Count(); i ++) {
+ CPDF_Annot* pAnnot = m_pList->GetAt(i);
+ if (pAnnot == NULL) {
+ continue;
+ }
+ CPDF_Dictionary* pIRT = pAnnot->m_pAnnotDict->GetDict("IRT");
+ if (pIRT != m_pAnnotDict) {
+ continue;
+ }
+ count ++;
+ }
+ return count;
+}
+CPDF_Annot* CPDF_Annot::GetIRTNote(int index)
+{
+ int count = 0;
+ for (int i = 0; i < m_pList->Count(); i ++) {
+ CPDF_Annot* pAnnot = m_pList->GetAt(i);
+ if (pAnnot == NULL) {
+ continue;
+ }
+ CPDF_Dictionary* pIRT = pAnnot->m_pAnnotDict->GetDict("IRT");
+ if (pIRT != m_pAnnotDict) {
+ continue;
+ }
+ if (count == index) {
+ return pAnnot;
+ }
+ count ++;
+ }
+ return NULL;
+}
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